The worst nightmare you can image when it comes to recording history and losing genealogical research material is happing in Richland , Washington. About 57, 000 images from professional photographers and historical photos will be destroyed if not claimed. Please read the whole story on
Dick Eastmans blog:
http://blog.eogn.com/2014/12/02/57000-photo-studio-negatives-in-richland-wa-to-be-destroyed/